This paper by Defenders' director of international conservation, Peter T. Jenkins, assesses the role of international law, particularly the World Trade Organization's Sanitary and Phytosanitary Agreement, the Convention on Biological Diversity and the World Organization for Animal Health, as a backdrop to the needed U.S. import policy reforms.

These are genus records for imports that lacked identification to the species level. They do not duplicate genera included on the above species lists; the genera may include both U.S. native and non-native species.